Tank for storing energy in the form of pressurized gas, made of ultra-high performance fibre reinforced concrete

A tank for storing a pressurized gas, the tank comprising:

• at least one tubular element having a wall having a layer of prestressed concrete, at least one circumferential mechanical reinforcing layer and a sealing layer, with the concrete that makes up the layer of prestressed concrete being chosen from ultra-high performance fiber-reinforced concretes;
• a base closing the at least one tubular element at one end of the at least one tubular element;
• and
• a cover closing the at least one tubular element at another end of the at least one tubular element opposite the one end,
• wherein the concrete of the layer of prestressed concrete is chosen from ultra-high performance fiber-reinforced concretes meeting at least one of:
• the prestressed concrete has fines of different sizes, the maximum size of the fines being less than 7 mm, and the content of fines having a grain size d50<5 μm being at least greater than 50 kg/m3 of concrete;
• a content of cement of between 700 and 1000 kg/m3 of concrete;
• a water/cement mass ratio of between 0.15 and 0.25;
• a content of solid additives between 10 and 35 kg/m3 of concrete;
• and
• a content of fibers of between 2% and 10% by volume.